$ git clone -n https://src.fedoraproject.org/rpms/qpdf.git /var/lib/mock/f31-build-72000-30800/root/chroot_tmpdir/scmroot/qpdf
Cloning into '/var/lib/mock/f31-build-72000-30800/root/chroot_tmpdir/scmroot/qpdf'...
$ git reset --hard c449243b36d801aaa087373d27ad49a418f94ca4
HEAD is now at c449243 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild